Shaft-hanger.



Patented. Sept. 11

F. E. REGHT. SHAFT HANGER.

APPLICATION' FILED IAN. I2 19M.

UNITE @TATE PATENT FRED E. BRIGHT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE HESS- BRIGHT MANUFACTURING COMPANY, A CORPORATION OF. DELAWARE.

SHAFT-HANGER.

Specification of Letters Patent.

Patenten sept. ai, iam.

or yoke, that the box may be adjusted andclamped in different positions relative to the frame, to compensate for wear or to correct misalinements of the shaft, or for other purposes. It is a common practice in shaft hangers of this type to support the bearing box in the hanger frame by means of oppositely arranged set screws mounted in the hanger frame and engaging the opposite sides of the box, and in practice it frequently happens that, due to inexperience or inattention, the screws are set up with undue tightness against the sides of the box, with the result that the box and contained bearing will be distorted or sprung, and in the case of a ball bearing, severe strains will be imposed upon the balls with consequent serious damage and abnormal resistance to the free and proper rotation of the parts.

It is the aim of my invention to avoid this objectionable action, and the invention consists in so forming the bearing box and mounting the same between adjusting devices so disposed and related to the box, that the clamping pressure of said devices o n the box will not distort or spring the same. In the more specific embodiment of the invention the bearing box is provided with a supporting part or foot, disposed beyond the general area of the box, and the hanger frame is provided with vertically adjustable supports on which said foot restss and provided also with transverselyaljustable devices adapted to engage opposite sides of the foot, so that by the relative and different adjustments of said devices and supports, the bearing box may be adjusted in all directions in a transverse plane, and may be firmly held in its adjusted position, and this without liability of any objectionable or damagingl strains on the box or contained parts.

In the accompanying drawings I have illustrated by way of example one embodiment of the invention, but it will be understood that other forms of embodiment may be adaptedr and that the details of the same may be variously modified and changed, without departing from the limits of my invention; and it will be further understood that the invention is not limited to any particular forms or construction of the parts except in so far as such limitations are specified in the claims.

In the accompanying drawings:

Figure 1 is a side elevation of a shaft hanger having my invention embodied therein. i

Fig. 2 is an end elevation of the same.

Fig. 3 is a longitudinal section 'on the line 3-3 of Fig. 1 showing the bearing and shaft in place in the bearing box.

Referring to the drawings:

1 represents a hanger frame or yoke adapted as usual to be firmly fixed to the ceiling or floor as the case may be. The frame comprisestwo vertical side bars 1f 'of channel or U-form in cross section which bars are arranged with their channels facing each other. At 'their lower ends the bars are turned inwardly and connected together by a strap 2. Situated in the space between the bars is a bearing box 3 which in the present instance 1s of general circular form and divided into upper and lower semi-circular sections detachably connected together by suitable means to admit of the ready mounting of the shaft 5 and its bearing 6 in the usual manner. The bearing box is supported and held in the hanger frame between vertically adjustable supports 7, 7 and transversely adjustable devices 8, 8il which supports and devices are mounted in the frame and are so engaged with the bearing box that the same may be adjusted in all directions in a transverse plane relatively to the frame and may be firmly held in its adjusted position. The vertically adjustable supports are in the form of set screws extending upwardly through threaded openings in the lower inturned portions of the side bars la, and through the ends of the connecting strap 2 before-alluded to, the upper ends of the countered in practice.

screws being in position to give support to the bearing box. The transversely adjustable devices 8, 8a are likewise in the form of set screws extending inwardly and at a downward inclination through threaded openings in the side bars of the frame, the inner ends of said screws being in position to cooperate with the bearing box on opposite sides.

The bearing box is provided on its bottom with a supportingr portion or foot 9 with which the set screws are adapted to engage and by means of which the box may be adjusted bodily to different positions in the frame, and may be firmly clamped and held in its adjusted position. This foot is formed as an extension depending from the lower side of the box and is provided with flat horizontal surfaces l0 adapted to seat on the respective screws 7, 7a and also is provided with downwardly and outwardly inclined surfaces l1 against which the set screws 8, 8a are adapted to respectively bear as shown in Fig. 1. The foot 9 is as it will be seen disposed beyond the general area of the box, so that such strains as are imposed by the binding of the set screws to clamp the box in position, will not distort or spring the box o1' the parts therein. By means of the set screws arranged as shown and described, the box may be adjusted vertically, horizontally, and also in angular directions as may be demanded by the conditions enrIhe vertical adjustments are effected by the vertical set screws, and the horizontal adjustments by the inclined screws, while angular adjustments of the box may be effected by raising' or lowering one or the other of the two vertical screws which are independent of each other; and when the box is adjusted it may be firmly held in its adjusted position by tightening up the inclined screws against the inclined surfaces on the box. The inclination of these surfaces enables the box to be held down firmly and fixedly by the inclined screws acting thereagainst, without liability of accidental looseness or displacement.

As a result of the construction described it will be seen that all the adjustments of tassista other, and transversely adjustable devices mounted in the frame and engaging said sloping surfaces respectively, to hold the box in fixed position on the vertical supports.

2. In a shaft hanger, the combination of ahanger fralne, vertically adjustable supports mounted therein, a bearing box sustained by said supports and provided .with a foot extending lbeyond the general area of the box and having surfaces sloping downwardly and outwardly from each other, and inwardly and downwardly extending transversely adjustable devices mounted in the frame and engaging said sloping surfaces respectively, to hold the box in xed position on the vertical supports.

3. In a shaft hanger, the combination of a hanger frame, vertically adjustable supports independent of each other at the lower end of the frame at opposite sides, a bearing box provided with a supporting foot extending beyond the general area of the box and formed with horizontal surfaces at its lower end and with inclined surfaces at opposite sides, said horizontal surfaces being seated on the adjustable supports, and transversely adjustable devices independent of each other and mounted in the sides of the hanger frame and engaging the inclined surfaces on the bearing box, and acting to hold the box firmly down on the vertical supports.

4. In a shaft hanger, the combination of a hanger frame formed with opposed upright side bars having their lower ends extended inwardly toward each other, a bearing box disposed between said side bars and adapted to sustain a shaft bearing, said bearing box having fixed thereto a supporting portion or foot projecting therefrom beyond the area of the box, and said foot being provided with end surfaces and two side surfaces disposed in angular relations to the end surfaces, two upright adjusting ai@ screws threaded in the inwardly extended ends of the side bars and bearing directly against the end surfaces of the foot, and two transversely extending screws threaded in said side bars and bearing at their ends re- M5 spectively against the side surfaces of the foot, and acting to hold the foot down on the upright adjusting screws while reventing the box from shifting, said four adjusting screws serving as the sole means for 120 maintaining the bearing box in its adjusted position in the hanger frame.

5. In a shaft hanger, the combination of a hanger frame, vertically adjustable supports mounted therein, a bearing box provided at 125 its lower side with a supporting foot extending beyond the general area of the box and in the direction of the plane of the same and provided with outwardly and downwardly sloping sides, said supporting ia@ madera foot being seated on the adjustable supports, and inclined transversely adjustable devices mounted in the frame and engaging the sloping sides of the supporting foot respectively.

6. In a shaft hanger, the combination of a hanger frame provided with opposed side bars, a bearing box disposed between said side bars and adapted to sustain a shaft bearing, said bearing box having fixed thereto at one side, a supporting portion or foot projecting therefrom beyond the area of the. box, and said foot being formed with end surfaces and two side surfaces disposed in angular relations to the end surfaces, independently adjustable supporting devices mounted in the side bars of the hanger frame and directly engaging the end surfaces of said foot at two separated points to adjustably support the box, and two adjusting devices mounted respectively in the side bars of the hanger frame and directly engaging the side surfaces respectively of the supporting foot, said devices being adjustable independently of each other transversely of the adjustment of the supporting devices and acting to hold the foot lirmly seated on the supporting devices while pre venting the box from shifting; whereby by means of the four adjusting devices, the

bearing box may be adjusted in all directions in theplane of the same and may be rmly held in its adjusted position.

7. In a shaft hanger, the combination of a hanger frame, a bearing box having fixed thereto at one side a supporting portion or foot projecting therefrom beyond the area of the box and provided with end surfaces and also with two side surfaces disposed in angular relations to the end surfaces, independently adjustable supporting screws mounted in the hanger frame and engaging the end surfaces to adjustably support the box, and two adjusting screws also mounted in the hanger frame vand engaging said side surfaces, said latter screws being adjustable independently of each other and acting to hold the foot firmly seated on the supporting screws while reventing'the foot from shifting, the said our screws serving as the sole means for maintaining the bearing box in its adjusted positions in the hanger frame. I

in testimony whereof l have affixed my signature in presence of two witnesses.

FRED E. BRKGHT. 

